I ran 32x11.5s on the stock sawblade rims for a while, with a 3" spacer lift. Minimal rubbing but they did rub a little while wheeling. I had an ARB front bumper so you'd have to trim your stock bumper. I also hammered in the pinch seam around the inner fender.
Retired after 2 great years of heavy wheeling - 1995 Jeep ZJ Grand Cherokee 4.0 - 3" coil spacer lift, Up-Country coils, 31x10.5x15 Destination M/Ts
Replacement & Daily Driver - 1998 ZJ Grand Cherokee V8 - 4.5" Rough Country lift, Up-Country skids, 31x10.5x15 Cooper Discoverer ATR, more armor coming soon.